Now the Russians show in Pyatikhatki how their grandfather's T-55 (as artillery) is being used!

Russians destroying militants of Kiev's NATO proxy force in Pyatikhatki with their grandfather's T-54/55 tanks
Fighting on the left flank of the Zaporozhye Front. Footage of the destruction of enemy forces in the Kremensky direction in Pyatikhatki.

T-54/55 used as mobile artillery, and that make sense, especially when there are tons of ammo for these tanks in storages.
There's no such a thing as "too much artillery"